Prime's free fall was more dynamic and exciting. By comparison, Stark's is a bit too predictable and "blah." He just jumps out of the plane and flies into the theater. I think the cut version where Pepper tosses his helmet out of the plane and Stark dives after it would have worked better (he'd have to catch the helmet and put it on in mid free fall - much more exciting and dynamic). That being said, I still enjoyed IM2 very much.

I am a huge Iron Man fan, but I gotta side with Prime on this one. That entrance serves as one of the greatest entrances of all time! The build up of the music, the headlight flare, the transformation...the parachutes with Autobot symbols (a little overkill there, but overkill that made this fan smile), followed by the first on-camera Prime transformation to vehicle! Badass!

I did NOT like the actual Iron Man 2 plane jump when compared to the plane jump shown in the trailer. Pepper throwing the helmet out of the back and Tony diving after it was far better. I wish they wouldn't have changed it.

Prime by far. His had an epic feel to it complete with the wonderful Jablonsky music as he made his entrance on his way to take on Demolishor. Iron Man's was cool, but he flies all the time anyway and was just making an appearance at an expo. AC/DC was cool, but didn't make me go "wow" like Jablonsky's music accompanied by the entrance of the giant alien robot who transforms in midair.

I'm going to give this one to Prime as well. While both scenes were really well done the scene with Prime just seems more fun. You know Iron Man can fly so it's nothing new that really jumps out at you, but Prime as a paratrooper just really jumps out as something you aren't expecting.

Although my favorite scene from the films is one that isn't hyped very much. I just really loved the scene in Iron Man 2 where the infantry drones anchor down so they can use their big guns on Iron Man. If Transformers 3 wants to return the favor of borrowing something then I hope that maybe one of the Transformers can do something like that.

I think Prime's was way cooler, but the Iron Man one was cool too. I do feel they were different scenes..Iron Man is jumping just to make a cool entrance..and the playboy that he is he likes to have some fun, dodging those fireworks..

but seriously guys, what can be cooler than a truck falling out of an airplane, transforming into a robot?!!!

I think it's too easy to say that similar shots are influenced by other movies. Might as well say then that Prime's jet jump was influenced by every other film featuring a similar scene. Die Another Day being the most recent IIRC.